GREENWICH — As part of its 2017 Hospital for Special Surgery Greenwich Cup, Threads and Treads invites festively clad runners, walkers and joggers to participate in the shop’s 30th Annual William Raveis Jingle Bell Jog this weekend.

The three-mile race will begin at 9 a.m. Sunday at the corner of East Putnam Avenue and Church Street in downtown Greenwich after runners sign in at Threads and Treads, 17 E. Putnam Ave. Tickets can be purchased online or in person at Threads and Treads for $25 before the event and $30 between 8 and 9 a.m. the day of the jog.

“We claim the (HSS Greenwich Cup) is the longest running multisport series in the world,” said race director Mickey Yardis. “It’s been going on for 34 years. It’s a great mix of running, cycling, swimming, triathlon.”

This year’s HSS Greenwich Cup included eight different athletic events. The most recent of these, the 2017 Dental Oral Surgery Beachfront Bushwhack Turkey Trot, attracted about 500 people Thanksgiving morning.

“But the Jingle Bell Jog is kind of the fun one,” Yardis said. “It wraps up the series.”

Last year, about 900 people signed up for the Jingle Bell Jog, which debuted in 1979 with 500 runners as the “Bagel Boogie.”

“People can walk or jog or race,” Yardis said. “And it’s unique in that we have prizes for the most festive-dressed, so everybody shows up in cheerful holiday attire.”

Yardis said, one year, two girls showed up dressed as “Naughty” and “Nice” and last year one of the winners was a girl dressed as a dreidel.

More information about the event can be found on the shop’s website and Facebook pages.

Email Jennifer Turiano at jturiano@greenwichtime.com and follow her on Twitter: @jturianoGT and Instagram: @greenwichgreen.